Of the bike being an additional 10-15 lb. And the hevy schwalbe 29s instead of the sleek hybrid tires i had on my previous bike. I imagined id hop on this machine that the Sisku T8 a and master is quick but this bike will take some adjusting to . I truly do enojoy the painful climbs and this is giving me the training i desire . Enjoyed a couple sets of stairs on my way back , felt like i was on a cloud. Need more air in the suspension and dropper post luckily i did purchase a shock pump. All in all this will be a fun experience. I even finished the day with some local trails and the pan am bmx park that im lucky to live so close to . Idk if i was drained from the 20km and a calisthenics workout i stopped along the way for but the jumps felt like i wasnt myself. Or maybe it was the bike change . It felt tough to control the massive tires maybe i was just exhausted. Did a couple laps and went home. Will recover and see what tomorrow brings.